changes after comments

Author: Arshadf

packages/optimizely-sdk/lib/core/bucketer/index.js

@@ -87,7 +87,7 @@ module.exports = {
     bucketerParams.logger.log(LOG_LEVEL.DEBUG, bucketedUserLogMessage);
 
     var entityId = module.exports._findBucket(bucketValue, bucketerParams.trafficAllocationConfig);
-    if (entityId === null || entityId === '') {
+    if (!entityId) {
       var userHasNoVariationLogMessage = sprintf(LOG_MESSAGES.USER_HAS_NO_VARIATION, MODULE_NAME, bucketerParams.userId, bucketerParams.experimentKey);
       bucketerParams.logger.log(LOG_LEVEL.DEBUG, userHasNoVariationLogMessage);
     } else if (!bucketerParams.variationIdMap.hasOwnProperty(entityId)) {

packages/optimizely-sdk/lib/core/decision_service/index.js

@@ -349,7 +349,7 @@ DecisionService.prototype._getVariationForFeatureExperiment = function(configObj
 
 DecisionService.prototype._getExperimentInGroup = function(configObj, group, userId) {
   var experimentId = bucketer.bucketUserIntoExperiment(group, userId, userId, this.logger);
-  if (experimentId !== null && experimentId !== '') {
+  if (experimentId) {
     this.logger.log(LOG_LEVEL.INFO, sprintf(LOG_MESSAGES.USER_BUCKETED_INTO_EXPERIMENT_IN_GROUP, MODULE_NAME, userId, experimentId, group.id));
     var experiment = projectConfig.getExperimentFromId(configObj, experimentId, this.logger);
     if (experiment) {